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What's Your Billionaire Age?

The concept of a billion dollars is pretty hard to fathom, which is okay because about 99.999% of us will never really have to deal with it. According to Forbes, the world has 1,011 billionaires out of nearly seven billion people, so it's not exactly an everyday occurrence. Those that do become billionaires seem to do it through a mixture of ingenuity, intelligence and timing, or they just inherit it. For the rest of us - those working average jobs, investing normally and living an average lifestyle - how long would it take to become a billionaire? Is it even possible?

If you're making around $50,000 per year, it won't take forever to amass a million dollars, and indeed, many people will be able to achieve that in their lifetime. But a billion dollars? That'd be 1,000 lifetimes, kind of. We'll check out a range of jobs in the U.S. and some typical investments to see how long it would take someone to become a billionaire. We'll be using the saving rate of 10% of someone's income for the year, which may be a little bit optimistic, but it gives a good picture of how long it takes to become a billionaire on an average joe's salary.

Teaching Your Way To a Fortune

There are more than one million teachers in the U.S. according to the Bureau of Labor Statistics, and the mean salary for elementary and secondary school teachers is $55,210. If you're a teacher and are able to put aside 10% of your salary every year ($5,521) then it will take around 186 years for you to become a billionaire if you have your money in a long-term savings account paying 5% interest compounded annually. This means, if you start saving when you're fresh out of college and never touch the money, you could be a billionaire when you're 208!

If you invested in a more lucrative vehicle, like the stock market, you can become a billionaire much quicker. Looking at the returns of the Dow Jones over the past 40 years, there is an average return (CAGR) of 6.68% per year. If these returns are similar for the coming years, then the teacher who puts away 10% of his or her salary per month could become a billionaire in just 145 years. If you only wanted to become a millionaire, it would take you between 46 and 47 years in a 5% savings account and around 39 years if you followed the 6.68% returns of the Dow.

High Earners

It seems nearly impossible to become a billionaire making the salary of the average American teacher, but that's not really a surprise. How about if you're in a higher salary range, like a surgeon or another specialized doctor? An average anesthesiologist in the U.S. makes $211,750, according to the BLS, and if that anesthesiologist was able to put away 10% of his or her earnings every year into our savings account it would take around 160 years to become a billionaire.

And if that anesthesiologist put their savings into an index that tracked the Dow, it would still take more than a lifetime at 124 years. With that kind of salary it seems like you just can't get there on hard work alone.

To give you more perspective, it would take a postal worker (mean salary $48,940) around 188-189 years to become a billionaire using a savings account, and 146-147 years investing in the market. It would take a lawyer (mean salary $129,020) 131-132 years to make a billion in the markets, and 168-169 to make a billion in a savings account. So, when you think of it, whether you're a lawyer, a teacher, a postal worker or a surgeon, the great equalizer is that you'll never be a billionaire.

Out of Reach?

So, who can become a billionaire? How much would you have to have on hand every year to invest and be a billionaire at a time where you could still spend it? If you could put away $1 million a year, you're still looking at about 80 years of saving or 64-65 years of investing before the big payoff. Even actors and athletes who can make millions a year, rarely have the staying power to make it every year for 80 years.

So, sorry to come to such a heartbreaking conclusion, but it's hard for anyone to become a billionaire using traditional methods. To see a billion dollars during your lifetime (40 years of saving), you would need to put nearly $5.5 million into a fund that mirrors the Dow's average growth of 6.68%.

The Bottom Line

Though there are over 1,000 billionaires in the world, it's still an exceptional occurrence, and is owing to momentous business dealings, kick-starting an industry, inventing a much-desired service or concept, and other extraordinary events. For the rest of us, maybe we'll just have to make due with a million.